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The molecule exists endogenously in plasma, saliva, and urine, and its concentration drops roughly 60% between the ages of 20 and 60 [2]
Free radicals generated from UV exposure, pollution, and heat damage skin cells and accelerate aging
Many mass-market brands use "flow agents" like magnesium stearate or silicon dioxide to make manufacturing faster and cheaper
Half the test subjects in the study were given 500 to 1000 mg of vitamin C while the other half were given a placebo pill
Be careful with phrases like 100% safe, no side effects, or instant whitening, as these claims can be misleading
Li D, Liu X, Pi W, Zhang Y, Yu L, Xu C, et al
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